Biology STAAR Review: Ecology UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Secondary Succession - CORRECT ANSWER - Type of ecological succession that occurs
in an area that was only partially destroyed or disrupted.
Primary Succession - CORRECT ANSWER - An ecological succession that begins in an
area where no biotic community previously existed.
Pioneer Species - CORRECT ANSWER - First set of species to populate an area during
primary succession.
Competition - CORRECT ANSWER - The struggle between organisms to survive in a
habitat with limited resources.
Symbiosis - CORRECT ANSWER - A close relationship between two species that
benefits at least one of the species.
Commensalism - CORRECT ANSWER - A relationship between two organisms in which
one organism benefits and the other is unaffected.
Mutualism - CORRECT ANSWER - A relationship between two species in which both
species benefit.
Parasitism - CORRECT ANSWER - A relationship between two organisms of different
species where one benefits and the other is harmed without being consumed.
Predation - CORRECT ANSWER - An interaction in which one organism kills and
consumes another for food.
ACTUAL Exam Questions and CORRECT
Answers
Secondary Succession - CORRECT ANSWER - Type of ecological succession that occurs
in an area that was only partially destroyed or disrupted.
Primary Succession - CORRECT ANSWER - An ecological succession that begins in an
area where no biotic community previously existed.
Pioneer Species - CORRECT ANSWER - First set of species to populate an area during
primary succession.
Competition - CORRECT ANSWER - The struggle between organisms to survive in a
habitat with limited resources.
Symbiosis - CORRECT ANSWER - A close relationship between two species that
benefits at least one of the species.
Commensalism - CORRECT ANSWER - A relationship between two organisms in which
one organism benefits and the other is unaffected.
Mutualism - CORRECT ANSWER - A relationship between two species in which both
species benefit.
Parasitism - CORRECT ANSWER - A relationship between two organisms of different
species where one benefits and the other is harmed without being consumed.
Predation - CORRECT ANSWER - An interaction in which one organism kills and
consumes another for food.
